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CONDUCTOR DESIGN ISSUES FOR OXIDE SUPERCONDUCTORS. 2. EXEMPLIFICATION OF STABLE CONDUCTORS.

Author(s) : OGASAWARA T.

Type of article: Article

Summary

COMPOSITE CONDUCTORS OF YBCO AND COPPER ARE DESIGNED ASSUMING CRITICAL CURRENT DENSITIES OF 1 MILLIARD A/M2 AT 77 K AND 10 MILLIARDS A/M2 AT 20 K. A MULTIFILAMENTARY COMPOSITE OF 4 MM IN DIAMETER CAN BE OPERATED UP TO THE CRITICAL CURRENT AT 77 K BUT, AT LOWER TEMPERATURES, THE SELF-FIELD INSTABILITY LIMITS THE MAXIMUM CURRENT. A COMPOSITE TAPE CONDUCTOR IS ALSO DESIGNED. THE ANALYSIS SHOWS THAT THE TAPE CONDUCTOR IS QUITE STABLE WHEN THE WIDE FACE IS EXPOSED TO THE COOLANT. A TAPE OF 20 MM WIDTH CAN ATTAIN ITS CRITICAL CURRENTS OF 500 A AT 77 K AND 5,000 A AT 20 K WITHOUT SUFFERING FROM MAGNETIC INSTABILITY.

Details

  • Original title: CONDUCTOR DESIGN ISSUES FOR OXIDE SUPERCONDUCTORS. 2. EXEMPLIFICATION OF STABLE CONDUCTORS.
  • Record ID : 1990-2237
  • Languages: English
  • Source: Cryogenics - vol. 29 - n. 1
  • Publication date: 1989

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